Fringe-weaving loom



March 24, 1925.

WITNESS omik Chqfle be a nlpew er L mnwsy Filed Jun 27, 1924 1,530,600 A. JENNY ET AL FRINGE WEAVING LOOM 4 sheets-sheet 2 INV NTOR 'ATTOk/VEV March 24. 1925. 1,530,600

7 A. JENNY ET AL FRINGE WEAVING L OOM Filed June 27, 1924 4 SheetsfS hee-t 4 WITNESS A TTORNE Y Patented Mar. 24, 1925.

UNITED STATES PATENT OFFICE.

attains ADOLPH JENNY, OF WES'I PATERSON, AND TRAUGOTT MARTIN AND CHARLES DUER- BENBERGER, OE PATIERSON, NEW JERSEY.

FRINGEWEAVING LOOM.

Application filed lune 27, 1924. Serial No. 722,714.

To (all whom it may concern:

Be it known that we, ADOLPH JENNY, a citizen of the Republic of Switzerland, TRAUGOTT MARTIN, a citizen of the United States, and CHARLES DUERRENBERGER, a citizen of the United States, residing at West Paterson, Paterson, and Paterson, respectively, in the county of Passaic and State of New Jersey, have invented certain new and useful Improvements in Fringe-VVeaving Looms, of which the following is a specification. I

One of the principal objects of this invention is to provide a mechanism which may be attached to any suitable alreadyexisting loom and adapt the loom for the weaving of fringed fabrics. Another principal object is to provide a mechanism for weaving fringed fabrics in which the length of the fringe may be varied so as to present any desired contour, as in the form of scallops and the like.

In the accompanying drawings,

Fig. 1 is a left side elevation of a 100111 embodying the present invention;

Fig. 1 is a sectional view of a shaft 0 showing certain cams thereon.

Fig. 2 is a right side elevation thereof;

Fig. 3 is a front elevation, partly in sec- ,0 tion, of the lay or batten structure and the parts thereon;

Fig. 4 is a plan of what is shown in Fig 3 and including the sheet of warp and woven fabric;

Fig. 5 is a vertical sectional view of what is shown in Fig. 3, the harness also appearing as well as the sheet of warp and woven fabric;

Fig. 6 is a rear elevation, partly 1n section, of the right-hand end of said lay structure;

7 Fig. 7 shows the loop cast-off finger in plan and side elevation;

Fig. 8 is a front elevation, partly in section, of the lay structure in a modified form of said mechanism; a

Fig. 9 is a plan and Fig. 10 a vertical sectional view thereof; and

Fig. 11 is a rearv elevation of the righthand end of the lay structure shown in Fig. 8.

Referring, first, to Figs. 1 to 7 In the loom frame a are suspended the lay-swords b of the lay or batten c', the lay structure thus formed being adapted to be recipro cated from the crank-shaft (Z of the loom through the pitmen e. Since the material woven will usually be of the narrow-ware class the loom is constructed to weave several fringed fabrics at once and so on the batten are arranged a number of reeds f through whichextend the threads of the warps A of the different fabrics B; each sheet of warp and fabric is supported by the breast beam a. and glass bars a and it is held stretched and advanced as the weaving proceeds in any well known way, unnecessary to be set forth herein. The sheds of the warp areformed by harness 51 having heddle eyes 9' through which the warp threads extend, the harness shafts being manipulated to form the sheds by anywcll known means also unnecessary to set forth. herein. The filling or weft thread C for each weaving space extends from a spool .71 forming the filling supply, which turns under some frictional resistance on a suit able support it at the back of the loom, through the eye 2" of a weight-tension device z', then forward and alongside the warp through a guide j on the loom frame and then to the fabric, passing through the eye 76' of a heddle la in the form of a cord which extends over a pulley Z at the top of the loom and has one end provided with a weight Z and its other end connected. to a lever m, which lever is adapted to be depressed by a cam 11. on the cam-shaft 0 which is connected with the crank-shaft cl to rotate in proper time therewith by the gearing 77.

According to that embodiment of the invention now being described, upon each forming of a shed the fillingy which conveniently extends through the reed, is caught forward of'the reed and drawn through the shed in the formof a loop, whereupon the shed closes and the reed beats up so that the loop is left bound in the fabric. For this purpose there is a rail 9 arranged to slide in a suitable groove in the top of the batten 0 and this carries longitudinally adjustable ina post 7* a horizontal hook s having its hooked end 8' upturned. This rail is normally urged to the right in Fig. 3 by a spiral spring 6 connecting a stud 10, depending from the rail and movable in a slot 0 in the batten, with a stud w fixed to the batten; it is drawn to, the left on each pick of the loom by a lever 02 (Fig. 1) which is connected with the rail by a flexible connect-ion y extending over a pulley a (Fig. 3) on the batten, the lever being adapted to be depressed by a cam 2 on the crank shaft 0. On each pickthe Ira-i1 moves to the left, and when the hook has penetrated the shed of the warp the filling thread C is depressed so as to rest on the hook, whereupon the rail recedes and the filling thread is drawn by the hook through the shed in the form of a loop as shown in Fig. 4, and then the loop must be disengaged from the hook as soon as it has been boundin, as described, by the reed and on the forming of a new shed. To cause this disengagement of the loop from the hook we provide a cast-off device as follows: In a suitable groove in the batten is arranged another rail 3 which carries a finger f that is bent rearwardly through the vertical plane in which the hook 8 lies. The rail 3 is movable vertically in the groove and is normally held depressed by spiral springs 5 which connect it with fixed stirrups 6 on the batten and are arranged to extend downwardly and to the right at an incline (so that they will not only yieldingly hold the rail depressed but to the right in its groove, the rail being also movable longitudinally of the groove,

as will be explained). WVhen the loop has been formed and drawn through the shed as shown in Fig. 1 it extends across the finger 4, which is then elevated to cast the loop off the hooked end 8" of the hook. The elevating of rail 3 for this purpose is effected through flexible connections 7 which are attached to the rail on the one hand and to a lever 8 on the other, passing .over pulleys 7, said lever being adapted to be depressed by a cam 9 on the shaft 0,.

By varying the extent to which the succeeding loops are drawn through the warp sheds the contour of the fringe which is formed at B by them as shown in Fig. 5 may be varied. This is accomplished as follows: A reciprocated member 10 (Figs. 8, 4 and 10), here a lever, is movable on the batten-including structure. It is adapted to be abutted by rail (1 and so forms a shiftable stop to limit the right-hand movement thereof; a roller 10 thereon is also abutted by the rail 3. A roller 1O on member 10 bears against a cam 11 which rotates in a bracket 12 projecting from the batten-including structure and has fixed to rotate with it a ratchet wheel 13 with which engages a pawl 14 carried by a lever 15 fulcrumed on a stud 16 -.on which the member 11-18 rotates. The member 11-13 may be held at each position of advance by a brake-strap 17 bearing against the cam. The lever 15 is elevated through a connection 18 Fig. 2) which extends therefrom to a lever 19 pivoted in the loom frame at 19' and normally "held by its own weight against and binds in the loop.

eral holes arranged lengthwise thereof for this purpose.

In the construction so far described the filling is =-caught by a loop-forming device (8") which enters from the opposite side of the open shed and forces .(by pulling) it through the shed, whereupon the crossing of the warps to form a new shed takes place Again, the filling comes to rest on the shank of thehook s by a vertical movement of one toward the other after the'hook shank is arranged in crossing relation to the filling, so that when thehook recedes the filling will surely be caught by .9. Still again, the filling is released from s by relative movement vertically as between the'hook and finger 4. p

In the construction shown'in Figs. Sto 11 the filling is caught by a loop-forming device which enters the open shed from .relatively the same side thereof and forces (by pushing) it through the shed, whereupon a loop-retaining device engages and holds the filling loop as the loop-forming device recedes and until the loop can be bound in by the crossing of the warps to form the new shed. On a rail 22 slidabl'e in a groove of the batten is arranged a pusher 23 having a notched or forked free .end. The rail .may be reciprocated by the same means as the rail 9 already described. hen the rail is moved to the left the pusher engages the filling thread C in its fork and forces it through the open shed, forming a loop as shown in Fig. 9. On a rail 24 arranged in a suitable groove in the batten o .is a loop retainer 25 which projects upwardly. The rail 24: may be moved vertically on each pickof the loom by the same means as the rail 3 already described. These movements of the rail '24 are so timed that when the loop is formed as described the retainer 25 will enterthe loop and hold it until the pusher recedes andthe crossing of the warp takes place to bind in the loop. The contour of the fringe formed by the loops may be varied by employing the same parts as thosehereinbefore referred to, to wit, 10 to 21*}, excepting that in this case the member 10 acts to shift only the rail 24, rail 22 always returning after each pushing thrust to the same position, since itis the extent of shifting of the part 25 and'not of the fork of the part 23 which determines the length .of the loop. In this case it is best to gage the position of the filling thread at the moment when the fork is to engage it and for this purpose there may be back of the reed (Figs. 8 and 11) a stop 26 up against which the filling thread C is brought and held by its heddle eye is at the proper moment.

It will be understood that there may be more than one filling thread C, as of different colors; an additional one, together with parts 70 70, Z Z, on and n for moving it up and down in proper time, is shown. The operation would be such that one of these filling threads would be brought into position to be caught and formed into a loop on one pick and then another on the next pick, and so on.

Both constructions are reducible to the same analysis, to wit, that they both comprise mechanism to engage the filling between the fabric and the filling supply means and on the forming of a shed force the filling in a loop through and past such shed including means, as s or 25, to maintain the loop until the warp threads undergo crossing for the forming of the next shed, said means being shifable (it matters not by what agency, but in the example governed by automatic means) transversely of the sheet whereby to vary the lengths of the portions of a succession of loops B left projecting from the finished fabric.

Having thus fully described our inven-' tion, what we claim as new and desire to secure by Letters Patent is:

1. In a loom, the combination of means to support the sheets of warp and woven fabric, means to form a shed in each warp, means to supply filling under tension to each warp, a batten movable toward and from the fabric and having longitudinal upwardly open grooves therein, reeds on the batten, one for each warp, a rail slidable in and lengthwise of one groove, devices on said rail to engage the filling corresponding to each warp between the fabric and said supply means and on the forming of the sheds force the filling in loops through and past the respective sheds, means to reciprocate said rail lengthwise of the batten, another rail movable up and down in the other groove, devices on the latter rail coactive with the respective first-named devices to re move said loops therefrom, and means to reciprocate the second rail up and down.

2. In a loom, the combination of means to support the sheet of warp and woven fabric, means to form sheds in the warp, means to supply filling under tension, a sliding structure arranged to reciprocate transversely of the sheet and having a device to engage the filling between the fabric and said supply means and on the forming of a shed force the filling in a loop through and past such shed, means to reciprocate said structure, a lever forming a stop for said structure shiftable lengthwise of its path of movement, means to cause the loop to be cast off from said device when said structure engages the lever, and means to shift the lever one way or the other while a succession of the filling loops are formed.

3. In a loom, the combination of means to support the sheet of warp and woven fabric, means to form sheds in the warp, means to supply filling under tension, a sliding structure arranged to reciprocate transversely of the sheet and having a device to engage the filling between the fabric and said supply means and on the forming of a shed force the filling in a loop through and past such shed, means to reciprocate said structure, a stop means for said structure shiftable to vary the extent of its movement in the direction to force the filling through and past the shed, and means, also shiftable lengthwise of the path of movement of said structure and held bearing against said stop means, to cause the loop to be cast off from said device when said structure engages the stop means.

In testimony whereof we aifix our signatures.

ADOIJPH JENNY.

TRAUGOTT MARTIN.

CHARLES DUEBRENBERGER, 

